InChI=1/C16H20N4O2/c17-10-13-7-4-8-20(13)16(22)14(18)9-15(21)19-11-12-5-2-1-3-6-12/h1-3,5-6,13-14H,4,7-9,11,18H2,(H,19,21)/p+1/t13-,14-/m0/s1/fC16H21N4O2/h18-19H/q+1 8C2883801BB67A9E